Dr. Brady says, "It doesn't really surprise me at all actually considering how much hypertension we are seeing and how much obesity we are seeing."

"When you actually look at how much sodium people have been taking in kids in the last decade its been between 900 and 1300 milligrams more", adds Dr. Brady.

The CDC study notes that high sodium rates are especially dangerous for overweight or obese children. 37 percent of children in the study were overweight or obese and 15 percent of those children had high or elevated blood pressure.

Dr. Brady says, "In the 70s around 1 percent of all kids are hypertensive and now we're seeing about 5 percent of all children being hypertensive. If you look at the population of obese children 30 percent of them are hypertensive, in our current U.S. population a third of all children are either overweight or obese.

Dr. Brady says, "I get this all the time, parents are very surprised when I tell them they need to limit their sodium intake because they think they are doing the right thing. They are not taking them to fast food restaurants, they are not giving them processed foods, they are trying to give them fresh foods but when you actually look at the sodium content in food labels you'll be surprisedat how much is in each serving."

Experts worry that higher hypertension sodium rates in children may lead to longer lasting, negative effects as they grow into adulthood.

Dr. Brady says, "Its really concerning that hypertension is so prevalent in kids because a lot of studies that have looked at children long term as they progress into adulthood show that if you have any cardiovascular risk factors as a child, you are more likely to have it as an adult."